
Nimalan Arjun Jeganathan MD
Associate Professor, Division of Colon and Rectal Surgery, Penn State Health, Lancaster Medical Center
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2135 Noll DriveLancaster, PA 17603
Phone+1 223-202-7001
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Summary
- Dr. Nimalan Jeganathan is a Colon and Rectal Surgeon based in Lancaster, PA, currently serving as an Associate Professor at Penn State Health Lancaster Medical Center. He completed his medical degree at Tufts University School of Medicine in 2010 and went on to a residency at the University of Pennsylvania Health System followed by a fellowship in Colon and Rectal Surgery at the Cleveland Clinic Foundation. His previous academic appointments include roles at The Ohio State University Wexner Medical Center and Penn State Milton S. Hershey Medical Center. Dr. Jeganathan has expertise in colorectal cancer and surgery and has published extensively, with recent works appearing in journals such as The Surgical Clinics of North America and Diseases of the Colon and Rectum. He has been recognized as a Fellow by both the American Society of Colon and Rectal Surgery and the American College of Surgeons and is an Alpha Omega Alpha Honor Society inductee.
Education & Training
Cleveland Clinic FoundationFellowship, Colon and Rectal Surgery, 2017 - 2018
University of Pennsylvania Health SystemResidency, Surgery, 2010 - 2017
Tufts University School of MedicineClass of 2010
University of Pennsylvania College of Arts and SciencesBA, Biology, 2000 - 2004
Certifications & Licensure
PA State Medical License 2010 - 2026
OH State Medical License 2023 - 2025
American Board of Colon and Rectal Surgery Colon & Rectal Surgery
American Board of Surgery Surgery
Awards, Honors, & Recognition
- Fellow (FASCRS) American Society of Colon and Rectal Surgery (ASCRS), 2021
- Fellow (FACS) American College of Surgeons (FACS), 2020
- Alpha Omega Alpha AOA Honor Society, 2009
Publications & Presentations
PubMed
- Development and Validation of the Ileoanal Pouch Syndrome Distress Index.Paul Cavallaro, Kinga S Olortegui, Randolph Steinhagen, Nimalan A Jeganathan, Nicola Fearnhead
Annals of Surgery. 2026-08-01 - Management of Colorectal Anastomotic Leaks With Endoluminal Vacuum Therapy: A Pragmatic Summary of the Evidence and Definition of Clinical Practices for Patient Select...Antonio Caycedo-Marulanda, Nimalan A Jeganathan, Luca Morelli, Simone Guadagni, Nawar A Alkhamesi
Diseases of the Colon and Rectum. 2025-11-01 - The Microbiome and the Etiology of Diverticulitis.Austin C Portolese, Nimalan A Jeganathan
The Surgical Clinics of North America. 2025-10-01
Press Mentions
Penn State Health Expert Available for Commentary on Increase of Colorectal Cancer Rates Among Younger PatientsMarch 10th, 2026
Professional Memberships
- Fellow
- Fellow
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